Well, first off there aren't alot of moving parts inside the rotary to replace with "Race" parts. Rotary....


Secondly, Dragon Celica is right. the best rotarys I have seen running in the 22 years i've been around them run on Holleys. Mikunis and other sidedrafts are great carbs, but I personally like the Ronco Rotosserie method...."Set it and forget it" Can't do that with the side drafts. But you stick a Holley on it and voilah, trouble free running for many moons.

That's my take.